Maven fight bugged, almost caused me to fail it

I wanted to record a Maven pinnacle bossfight.
The bossfigth went smooth until the memory game phase, which maven just stopped doing anything but the fight played out,causing me to die to an invisible memory phase. Picked myself up,continued the fight normally but a buggy invisible wall appeared without my notice.
The 2nd memory phase went the same, now noticing the invisible wall as the memory phase debugged, causing me 2 more deaths in later memory phases.
I am not very good at typing this out, but as I previously mentioned, I was recording so here is video footage: https://www.youtube.com/watch?v=ZUmFMEIXK0c

Hope this is a constructive report.
Kind regards,Andrew